Collaborative Multithreading: An Open Scalable Processor Architecture for Embedded Multimedia Applications

Wei-chun Ku, Shu-hsuan Chou, Jui-chin Chu, Chih-heng Kang, Tien-fu Chen, Jiun-in Guo
2006 2006 IEEE International Conference on Multimedia and Expo  
Numerous approaches can be employed in exploiting computation power in processors such as superscalar, VLIW, SMT and multi-core on chip. In this paper, a UniCore VisoMT processor is proposed, which unifies VLIW and multithreading by providing an efficient control and data communication model, while offering explicit parallelisms for embedded applications. The architecture concurrently executes a main thread and several accelerative threads, coordinated by the main thread. A switch-based
more » ... witch-based register-file is provided for fast data exchange between these accelerative threads. Moreover, a SMT helper function unit is employed for controlling and resource-sharing between accelerative threads, and an event-driven mechanism is introduced for synchronization between the main thread and these accelerative threads. Our results show that the proposed architecture provides area and performance advantages for embedded multimedia applications.
doi:10.1109/icme.2006.262505 dblp:conf/icmcs/KuCCKCG06 fatcat:bsuqbiln5rcxzpl5pto7bfo5im